Power control for concurrent reception

ABSTRACT

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a control node may determine, for a target wireless node in communication with a plurality of other wireless nodes via a plurality of links of a network, a plurality of powers for the plurality of links, wherein the plurality of powers are selected to control inter-link interference or to satisfy a maximum power criterion. The control node may cause at least one of the target wireless node or the plurality of other wireless nodes to use the plurality of powers for concurrent transmissions to the target wireless node using the plurality of links based at least in part on determining the plurality of powers. Numerous other aspects are provided.

CROSS-REFERENCE TO RELATED APPLICATIONS UNDER 35 U.S.C. § 119

This application is a continuation of U.S. patent application Ser. No.16/144,530, filed Sep. 27, 2018 (now U.S. Pat. No. 11,026,186), entitled“POWER CONTROL FOR CONCURRENT RECEPTION,” which claims priority to U.S.Provisional Patent Application No. 62/578,303, filed on Oct. 27, 2017,entitled “TECHNIQUES AND APPARATUSES FOR POWER CONTROL FOR CONCURRENTRECEPTION,” the contents of which are incorporated herein by referencein their entireties.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wirelesscommunication, and more particularly to techniques and apparatuses forpower control for concurrent reception.

BACKGROUND

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (e.g., bandwidth,transmit power, and/or the like). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

A wireless communication network may include a number of base stations(BSs) that can support communication for a number of user equipment(UEs). A user equipment (UE) may communicate with a base station (BS)via the downlink and uplink. The downlink (or forward link) refers tothe communication link from the BS to the UE, and the uplink (or reverselink) refers to the communication link from the UE to the BS. As will bedescribed in more detail herein, a BS may be referred to as a Node B, agNB, an access point (AP), a radio head, a transmit receive point (TRP),a new radio (NR) BS, a 5G Node B, and/or the like.

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent user equipment to communicate on a municipal, national,regional, and even global level. New radio (NR), which may also bereferred to as 5G, is a set of enhancements to the LTE mobile standardpromulgated by the Third Generation Partnership Project (3GPP). NR isdesigned to better support mobile broadband Internet access by improvingspectral efficiency, lowering costs, improving services, making use ofnew spectrum, and better integrating with other open standards usingorthogonal frequency division multiplexing (OFDM) with a cyclic prefix(CP) (CP-OFDM) on the downlink (DL), using CP-OFDM and/or SC-FDM (e.g.,also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) onthe uplink (UL), as well as supporting beamforming, multiple-inputmultiple-output (MIMO) antenna technology, and carrier aggregation.However, as the demand for mobile broadband access continues toincrease, there exists a need for further improvements in LTE and NRtechnologies. Preferably, these improvements should be applicable toother multiple access technologies and the telecommunication standardsthat employ these technologies.

SUMMARY

In some aspects, a method of wireless communication may includedetermining, for a target wireless node in communication with aplurality of other wireless nodes via a plurality of links of a network,a plurality of powers for the plurality of links, wherein the pluralityof powers are selected to control inter-link interference or to satisfya maximum power criterion. The method may include causing at least oneof the target wireless node or the plurality of other wireless nodes touse the plurality of powers for concurrent transmissions to the targetwireless node using the plurality of links based at least in part ondetermining the plurality of powers.

In some aspects, the method may include causing the target wireless nodeto use the plurality of powers for a reception from the plurality ofother nodes using at least one of the plurality of links. In someaspects, the method may include causing the target wireless node to usethe plurality of powers for a transmission to at least one of theplurality of other wireless nodes using at least one of the plurality oflinks.

In some aspects, a control node for wireless communication may includememory and one or more processors operatively coupled to the memory. Thememory and the one or more processors may be configured to determine,for a target wireless node in communication with a plurality of otherwireless nodes via a plurality of links of a network, a plurality ofpowers for the plurality of links, wherein the plurality of powers areselected to control inter-link interference or to satisfy a maximumpower criterion. The memory and the one or more processors may beconfigured to cause at least one of the target wireless node or theplurality of other wireless nodes to use the plurality of powers forconcurrent transmissions to the target wireless node using the pluralityof links based at least in part on determining the plurality of powers.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a control node,may cause the one or more processors to determine, for a target wirelessnode in communication with a plurality of other wireless nodes via aplurality of links of a network, a plurality of powers for the pluralityof links, wherein the plurality of powers are selected to controlinter-link interference or to satisfy a maximum power criterion. The oneor more instructions, when executed by the one or more processors, maycause the one or more processors to cause at least one of the targetwireless node or the plurality of other wireless nodes to use theplurality of powers for concurrent transmissions to the target wirelessnode using the plurality of links based at least in part on determiningthe plurality of powers.

In some aspects, an apparatus for wireless communication may includemeans for determining, for a target wireless node in communication witha plurality of other wireless nodes via a plurality of links of anetwork, a plurality of powers for the plurality of links, wherein theplurality of powers are selected to control inter-link interference orto satisfy a maximum power criterion. The apparatus may include meansfor causing at least one of the target wireless node or the plurality ofother wireless nodes to use the plurality of powers for concurrenttransmissions to the target wireless node using the plurality of linksbased at least in part on determining the plurality of powers.

In some aspects, a method of wireless communication may includedetermining, for a target wireless node in communication with at leastone other wireless node via at least one link of a network, a pluralityof powers for the at least one link, wherein the plurality of powers areselected to control inter-link interference or to satisfy a maximumpower criterion. The method may include causing at least one of thetarget wireless node or the at least one other wireless node to use theplurality of powers for concurrent transmissions using the at least onelink based at least in part on determining the plurality of powers.

In some aspects, a control node for wireless communication may includememory and one or more processors operatively coupled to the memory. Thememory and the one or more processors may be configured to determine,for a target wireless node in communication with at least one otherwireless node via at least one link of a network, a plurality of powersfor the at least one link, wherein the plurality of powers are selectedto control inter-link interference or to satisfy a maximum powercriterion. The memory and the one or more processors may be configuredto cause at least one of the target wireless node or the at least oneother wireless node to use the plurality of powers for concurrenttransmissions using the at least one link based at least in part ondetermining the plurality of powers.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a control node,may cause the one or more processors to determine, for a target wirelessnode in communication with at least one other wireless node via at leastone link of a network, a plurality of powers for the at least one link,wherein the plurality of powers are selected to control inter-linkinterference or to satisfy a maximum power criterion. The one or moreinstructions, when executed by the one or more processors, may cause theone or more processors to cause at least one of the target wireless nodeor the at least one other wireless node to use the plurality of powersfor concurrent transmissions using the at least one link based at leastin part on determining the plurality of powers.

In some aspects, an apparatus for wireless communication may includemeans for determining, for a target wireless node in communication withat least one other wireless node via at least one link of a network, aplurality of powers for the at least one link, wherein the plurality ofpowers are selected to control inter-link interference or to satisfy amaximum power criterion. The apparatus may include means for causing atleast one of the target wireless node or the at least one other wirelessnode to use the plurality of powers for concurrent transmissions usingthe at least one link based at least in part on determining theplurality of powers.

Aspects generally include a method, apparatus, device, computer programproduct, non-transitory computer-readable medium, user equipment,wireless communication device, base station, access point, wirelessnode, access node, control node, scheduler node, central unit, andprocessing system as substantially described herein with reference toand as illustrated by the accompanying drawings and specification.

The foregoing has outlined rather broadly the features and technicaladvantages of examples according to the disclosure in order that thedetailed description that follows may be better understood. Additionalfeatures and advantages will be described hereinafter. The conceptionand specific examples disclosed may be readily utilized as a basis formodifying or designing other structures for carrying out the samepurposes of the present disclosure. Such equivalent constructions do notdepart from the scope of the appended claims. Characteristics of theconcepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purpose ofillustration and description, and not as a definition of the limits ofthe claims.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the manner in which the above-recited features of the presentdisclosure can be understood in detail, a more particular description,briefly summarized above, may be had by reference to aspects, some ofwhich are illustrated in the appended drawings. It is to be noted,however, that the appended drawings illustrate only certain typicalaspects of this disclosure and are therefore not to be consideredlimiting of its scope, for the description may admit to other equallyeffective aspects. The same reference numbers in different drawings mayidentify the same or similar elements.

FIG. 1 is a block diagram conceptually illustrating an example of awireless communication network, in accordance with various aspects ofthe present disclosure.

FIG. 2 is a block diagram conceptually illustrating an example of a basestation in communication with a user equipment (UE) in a wirelesscommunication network, in accordance with various aspects of the presentdisclosure.

FIGS. 3A and 3B are block diagrams conceptually illustrating an exampleof a frame structure in a wireless communication network, in accordancewith various aspects of the present disclosure.

FIG. 4 is a block diagram conceptually illustrating an example subframeformat with the normal cyclic prefix, in accordance with various aspectsof the present disclosure.

FIG. 5 illustrates an example logical architecture of a distributedradio access network (RAN), in accordance with various aspects of thepresent disclosure.

FIG. 6 illustrates an example physical architecture of a distributedRAN, in accordance with various aspects of the present disclosure.

FIGS. 7A and 7B are diagrams illustrating an example of a networktopology for a network, in accordance with various aspects of thepresent disclosure.

FIGS. 8A and 8B are diagrams illustrating an example of power controlfor concurrent reception, in accordance with various aspects of thepresent disclosure.

FIG. 9 is a diagram illustrating an example process performed, forexample, by a control node, in accordance with various aspects of thepresent disclosure.

FIG. 10 is a diagram illustrating an example process performed, forexample, by a control node, in accordance with various aspects of thepresent disclosure.

FIG. 11 is a diagram illustrating an example process performed, forexample, by a wireless node, in accordance with various aspects of thepresent disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafterwith reference to the accompanying drawings. This disclosure may,however, be embodied in many different forms and should not be construedas limited to any specific structure or function presented throughoutthis disclosure. Rather, these aspects are provided so that thisdisclosure will be thorough and complete, and will fully convey thescope of the disclosure to those skilled in the art. Based at least inpart on the teachings herein one skilled in the art should appreciatethat the scope of the disclosure is intended to cover any aspect of thedisclosure disclosed herein, whether implemented independently of orcombined with any other aspect of the disclosure. For example, anapparatus may be implemented or a method may be practiced using anynumber of the aspects set forth herein. In addition, the scope of thedisclosure is intended to cover such an apparatus or method which ispracticed using other structure, functionality, or structure andfunctionality in addition to or other than the various aspects of thedisclosure set forth herein. It should be understood that any aspect ofthe disclosure disclosed herein may be embodied by one or more elementsof a claim.

Several aspects of telecommunication systems will now be presented withreference to various apparatuses and techniques. These apparatuses andtechniques will be described in the following detailed description andillustrated in the accompanying drawings by various blocks, modules,components, circuits, steps, processes, algorithms, and/or the like(collectively referred to as “elements”). These elements may beimplemented using hardware, software, or combinations thereof. Whethersuch elements are implemented as hardware or software depends upon theparticular application and design constraints imposed on the overallsystem.

It is noted that while aspects may be described herein using terminologycommonly associated with 3G and/or 4G wireless technologies, aspects ofthe present disclosure can be applied in other generation-basedcommunication systems, such as 5G and later, including NR technologies.

FIG. 1 is a diagram illustrating a network 100 in which aspects of thepresent disclosure may be practiced. The network 100 may be an LTEnetwork or some other wireless network, such as a 5G or NR network.Wireless network 100 may include a number of BSs 110 (shown as BS 110 a,BS 110 b, BS 110 c, and BS 110 d) and other network entities. A BS is anentity that communicates with user equipment (UEs) and may also bereferred to as a base station, a NR BS, a Node B, a gNB, a 5G node B(NB), an access point, a transmit receive point (TRP), and/or the like.Each BS may provide communication coverage for a particular geographicarea. In 3GPP, the term “cell” can refer to a coverage area of a BSand/or a BS subsystem serving this coverage area, depending on thecontext in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, and/or another type of cell. A macro cell may cover arelatively large geographic area (e.g., several kilometers in radius)and may allow unrestricted access by UEs with service subscription. Apico cell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (e.g., a home) and may allowrestricted access by UEs having association with the femto cell (e.g.,UEs in a closed subscriber group (CSG)). A BS for a macro cell may bereferred to as a macro BS. A BS for a pico cell may be referred to as apico BS. A BS for a femto cell may be referred to as a femto BS or ahome BS. In the example shown in FIG. 1, a BS 110 a may be a macro BSfor a macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102b, and a BS 110 c may be a femto BS for a femto cell 102 c. A BS maysupport one or multiple (e.g., three) cells. The terms “eNB”, “basestation”, “NR BS”, “gNB”, “TRP”, “AP”, “node B”, “5G NB”, and “cell” maybe used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some aspects, the BSs may be interconnected to one anotherand/or to one or more other BSs or network nodes (not shown) in theaccess network 100 through various types of backhaul interfaces such asa direct physical connection, a virtual network, and/or the like usingany suitable transport network.

Wireless network 100 may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (e.g., a BS or a UE) and send a transmission of the data to adownstream station (e.g., a UE or a BS). A relay station may also be aUE that can relay transmissions for other UEs. In the example shown inFIG. 1, a relay station 110 d may communicate with macro BS 110 a and aUE 120 d in order to facilitate communication between BS 110 a and UE120 d. A relay station may also be referred to as a relay BS, a relaybase station, a relay, and/or the like.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/orthe like. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impact on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (e.g., 5 to 40 Watts) whereas pico BSs, femto BSs, and relayBSs may have lower transmit power levels (e.g., 0.1 to 2 Watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs may also communicatewith one another, e.g., directly or indirectly via a wireless orwireline backhaul.

UEs 120 (e.g., 120 a, 120 b, 120 c) may be dispersed throughout wirelessnetwork 100, and each UE may be stationary or mobile. A UE may also bereferred to as an access terminal, a terminal, a mobile station, asubscriber unit, a station, and/or the like. A UE may be a cellularphone (e.g., a smart phone), a personal digital assistant (PDA), awireless modem, a wireless communication device, a handheld device, alaptop computer, a cordless phone, a wireless local loop (WLL) station,a tablet, a camera, a gaming device, a netbook, a smartbook, anultrabook, medical device or equipment, biometric sensors/devices,wearable devices (smart watches, smart clothing, smart glasses, smartwrist bands, smart jewelry (e.g., smart ring, smart bracelet)), anentertainment device (e.g., a music or video device, or a satelliteradio), a vehicular component or sensor, smart meters/sensors,industrial manufacturing equipment, a global positioning system device,or any other suitable device that is configured to communicate via awireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, such as sensors,meters, monitors, location tags, and/or the like, that may communicatewith a base station, another device (e.g., remote device), or some otherentity. A wireless node may provide, for example, connectivity for or toa network (e.g., a wide area network such as Internet or a cellularnetwork) via a wired or wireless communication link. Some UEs may beconsidered Internet-of-Things (IoT) devices, and/or may be implementedas may be implemented as NB-IoT (narrowband interne of things) devices.Some UEs may be considered a Customer Premises Equipment (CPE). UE 120may be included inside a housing that houses components of UE 120, suchas processor components, memory components, and/or the like.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular RAT andmay operate on one or more frequencies. A RAT may also be referred to asa radio technology, an air interface, and/or the like. A frequency mayalso be referred to as a carrier, a frequency channel, and/or the like.Each frequency may support a single RAT in a given geographic area inorder to avoid interference between wireless networks of different RATs.In some cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120 a and UE 120e) may communicate directly using one or more sidelink channels (e.g.,without using a base station 110 as an intermediary to communicate withone another). For example, the UEs 120 may communicate usingpeer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (e.g., which mayinclude a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure(V2I) protocol, and/or the like), a mesh network, and/or the like. Inthis case, the UE 120 may perform scheduling operations, resourceselection operations, and/or other operations described elsewhere hereinas being performed by the base station 110.

As indicated above, FIG. 1 is provided merely as an example. Otherexamples are possible and may differ from what was described with regardto FIG. 1.

FIG. 2 shows a block diagram of a design 200 of base station 110 and UE120, which may be one of the base stations and one of the UEs in FIG. 1.Base station 110 may be equipped with T antennas 234 a through 234 t,and UE 120 may be equipped with R antennas 252 a through 252 r, where ingeneral T≥1 and R≥1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, select one or more modulation andcoding schemes (MCS) for each UE based at least in part on channelquality indicators (CQIs) received from the UE, process (e.g., encodeand modulate) the data for each UE based at least in part on the MCS(s)selected for the UE, and provide data symbols for all UEs. Transmitprocessor 220 may also process system information (e.g., for semi-staticresource partitioning information (SRPI) and/or the like) and controlinformation (e.g., CQI requests, grants, upper layer signaling, and/orthe like) and provide overhead symbols and control symbols. Transmitprocessor 220 may also generate reference symbols for reference signals(e.g., the cell-specific reference signal (CRS)) and synchronizationsignals (e.g., the primary synchronization signal (PSS) and secondarysynchronization signal (SSS)). A transmit (TX) multiple-inputmultiple-output (MIMO) processor 230 may perform spatial processing(e.g., precoding) on the data symbols, the control symbols, the overheadsymbols, and/or the reference symbols, if applicable, and may provide Toutput symbol streams to T modulators (MODs) 232 a through 232 t. Eachmodulator 232 may process a respective output symbol stream (e.g., forOFDM and/or the like) to obtain an output sample stream. Each modulator232 may further process (e.g., convert to analog, amplify, filter, andupconvert) the output sample stream to obtain a downlink signal. Tdownlink signals from modulators 232 a through 232 t may be transmittedvia T antennas 234 a through 234 t, respectively. According to variousaspects described in more detail below, the synchronization signals canbe generated with location encoding to convey additional information.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 and/or other base stations and may providereceived signals to demodulators (DEMODs) 254 a through 254 r,respectively. Each demodulator 254 may condition (e.g., filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (e.g., forOFDM and/or the like) to obtain received symbols. A MIMO detector 256may obtain received symbols from all R demodulators 254 a through 254 r,perform MIMO detection on the received symbols if applicable, andprovide detected symbols. A receive processor 258 may process (e.g.,demodulate and decode) the detected symbols, provide decoded data for UE120 to a data sink 260, and provide decoded control information andsystem information to a controller/processor 280. A channel processormay determine reference signal received power (RSRP), received signalstrength indicator (RSSI), reference signal received quality (RSRQ),channel quality indicator (CQI), and/or the like.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (e.g., forreports comprising RSRP, RSSI, RSRQ, CQI, and/or the like) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (e.g.,for DFT-s-OFDM, CP-OFDM, and/or the like), and transmitted to basestation 110. At base station 110, the uplink signals from UE 120 andother UEs may be received by antennas 234, processed by demodulators232, detected by a MIMO detector 236 if applicable, and furtherprocessed by a receive processor 238 to obtain decoded data and controlinformation sent by UE 120. Receive processor 238 may provide thedecoded data to a data sink 239 and the decoded control information tocontroller/processor 240. Base station 110 may include communicationunit 244 and communicate to network controller 130 via communicationunit 244. Network controller 130 may include communication unit 294,controller/processor 290, and memory 292.

In some aspects, one or more components of UE 120 may be included in ahousing. Controller/processor 240 of base station 110,controller/processor 280 of UE 120, and/or any other component(s) ofFIG. 2 may perform one or more techniques associated with power controlfor concurrent reception, as described in more detail elsewhere herein.For example, controller/processor 240 of base station 110,controller/processor 280 of UE 120, and/or any other component(s) ofFIG. 2 may perform or direct operations of, for example, process 900 ofFIG. 9, process 1000 of FIG. 10, and/or other processes as describedherein. Memories 242 and 282 may store data and program codes for basestation 110 and UE 120, respectively. A scheduler 246 may schedule UEsfor data transmission on the downlink and/or uplink.

In some aspects, UE 120 may include means for determining, for a targetwireless node in communication with a plurality of other wireless nodesvia a plurality of links of a network, a plurality of powers for theplurality of links, means for causing at least one of the targetwireless node or the plurality of other wireless nodes to use theplurality of powers for concurrent transmissions to the target wirelessnode using the plurality of links based at least in part on determiningthe plurality of powers, and/or the like. In some aspects, such meansmay include one or more components of UE 120 described in connectionwith FIG. 2.

In some aspects, base station 110 may include means for determining, fora target wireless node in communication with a plurality of otherwireless nodes via a plurality of links of a network, a plurality ofpowers for the plurality of links, means for causing the plurality ofother wireless nodes to use the plurality of powers for concurrenttransmissions to the target wireless node using the plurality of linksbased at least in part on determining the plurality of powers, and/orthe like. In some aspects, such means may include one or more componentsof base station 110 described in connection with FIG. 2.

As indicated above, FIG. 2 is provided merely as an example. Otherexamples are possible and may differ from what was described with regardto FIG. 2.

FIG. 3A shows an example frame structure 300 for frequency divisionduplexing (FDD) in a telecommunications system (e.g., NR). Thetransmission timeline for each of the downlink and uplink may bepartitioned into units of radio frames (sometimes referred to asframes). Each radio frame may have a predetermined duration (e.g., 10milliseconds (ms)) and may be partitioned into a set of Z (Z≥1)subframes (e.g., with indices of 0 through Z−1). Each subframe may havea predetermined duration (e.g., 1 ms) and may include a set of slots(e.g., 2^(m) slots per subframe are shown in FIG. 3A, where m is anumerology used for a transmission, such as 0, 1, 2, 3, 4, and/or thelike). Each slot may include a set of L symbol periods. For example,each slot may include fourteen symbol periods (e.g., as shown in FIG.3A), seven symbol periods, or another number of symbol periods. In acase where the subframe includes two slots (e.g., when m=1), thesubframe may include 2L symbol periods, where the 2L symbol periods ineach subframe may be assigned indices of 0 through 2L−1. In someaspects, a scheduling unit for the FDD may frame-based, subframe-based,slot-based, symbol-based, and/or the like.

While some techniques are described herein in connection with frames,subframes, slots, and/or the like, these techniques may equally apply toother types of wireless communication structures, which may be referredto using terms other than “frame,” “subframe,” “slot,” and/or the likein 5G NR. In some aspects, a wireless communication structure may referto a periodic time-bounded communication unit defined by a wirelesscommunication standard and/or protocol. Additionally, or alternatively,different configurations of wireless communication structures than thoseshown in FIG. 3A may be used.

In certain telecommunications (e.g., NR), a base station may transmitsynchronization signals. For example, a base station may transmit aprimary synchronization signal (PSS), a secondary synchronization signal(SSS), and/or the like, on the downlink for each cell supported by thebase station. The PSS and SSS may be used by UEs for cell search andacquisition. For example, the PSS may be used by UEs to determine symboltiming, and the SSS may be used by UEs to determine a physical cellidentifier, associated with the base station, and frame timing. The basestation may also transmit a physical broadcast channel (PBCH). The PBCHmay carry some system information, such as system information thatsupports initial access by UEs.

In some aspects, the base station may transmit the PSS, the SSS, and/orthe PBCH in accordance with a synchronization communication hierarchy(e.g., a synchronization signal (SS) hierarchy) including multiplesynchronization communications (e.g., SS blocks), as described below inconnection with FIG. 3B.

FIG. 3B is a block diagram conceptually illustrating an example SShierarchy, which is an example of a synchronization communicationhierarchy. As shown in FIG. 3B, the SS hierarchy may include an SS burstset, which may include a plurality of SS bursts (identified as SS burst0 through SS burst B−1, where B is a maximum number of repetitions ofthe SS burst that may be transmitted by the base station). As furthershown, each SS burst may include one or more SS blocks (identified as SSblock 0 through SS block (b_(max_SS−1)), where b_(max_SS−1) is a maximumnumber of SS blocks that can be carried by an SS burst). In someaspects, different SS blocks may be beam-formed differently. An SS burstset may be periodically transmitted by a wireless node, such as every Xmilliseconds, as shown in FIG. 3B. In some aspects, an SS burst set mayhave a fixed or dynamic length, shown as Y milliseconds in FIG. 3B.

The SS burst set shown in FIG. 3B is an example of a synchronizationcommunication set, and other synchronization communication sets may beused in connection with the techniques described herein. Furthermore,the SS block shown in FIG. 3B is an example of a synchronizationcommunication, and other synchronization communications may be used inconnection with the techniques described herein.

In some aspects, an SS block includes resources that carry the PSS, theSSS, the PBCH, and/or other synchronization signals (e.g., a tertiarysynchronization signal (TSS)) and/or synchronization channels. In someaspects, multiple SS blocks are included in an SS burst, and the PSS,the SSS, and/or the PBCH may be the same across each SS block of the SSburst. In some aspects, a single SS block may be included in an SSburst. In some aspects, the SS block may be at least four symbol periodsin length, where each symbol carries one or more of the PSS (e.g.,occupying one symbol), the SSS (e.g., occupying one symbol), and/or thePBCH (e.g., occupying two symbols).

In some aspects, a synchronization communication (e.g., an SS block) mayinclude a base station synchronization communication for transmission,which may be referred to as a Tx BS-SS, a Tx gNB-SS, and/or the like. Insome aspects, a synchronization communication (e.g., an SS block) mayinclude a base station synchronization communication for reception,which may be referred to as an Rx BS-SS, an Rx gNB-SS, and/or the like.In some aspects, a synchronization communication (e.g., an SS block) mayinclude a user equipment synchronization communication for transmission,which may be referred to as a Tx UE-SS, a Tx NR-SS, and/or the like. Abase station synchronization communication (e.g., for transmission by afirst base station and reception by a second base station) may beconfigured for synchronization between base stations, and a userequipment synchronization communication (e.g., for transmission by abase station and reception by a user equipment) may be configured forsynchronization between a base station and a user equipment.

In some aspects, a base station synchronization communication mayinclude different information than a user equipment synchronizationcommunication. For example, one or more base stations synchronizationcommunications may exclude PBCH communications. Additionally, oralternatively, a base station synchronization communication and a userequipment synchronization communication may differ with respect to oneor more of a time resource used for transmission or reception of thesynchronization communication, a frequency resource used fortransmission or reception of the synchronization communication, aperiodicity of the synchronization communication, a waveform of thesynchronization communication, a beamforming parameter used fortransmission or reception of the synchronization communication, and/orthe like.

In some aspects, the symbols of an SS block are consecutive, as shown inFIG. 3B. In some aspects, the symbols of an SS block arenon-consecutive. Similarly, in some aspects, one or more SS blocks ofthe SS burst may be transmitted in consecutive radio resources (e.g.,consecutive symbol periods) during one or more subframes. Additionally,or alternatively, one or more SS blocks of the SS burst may betransmitted in non-consecutive radio resources.

In some aspects, the SS bursts may have a burst period, whereby the SSblocks of the SS burst are transmitted by the base station according tothe burst period. In other words, the SS blocks may be repeated duringeach SS burst. In some aspects, the SS burst set may have a burst setperiodicity, whereby the SS bursts of the SS burst set are transmittedby the base station according to the fixed burst set periodicity. Inother words, the SS bursts may be repeated during each SS burst set.

The base station may transmit system information, such as systeminformation blocks (SIBs) on a physical downlink shared channel (PDSCH)in certain subframes. The base station may transmit controlinformation/data on a physical downlink control channel (PDCCH) in Csymbol periods of a subframe, where B may be configurable for eachsubframe. The base station may transmit traffic data and/or other dataon the PDSCH in the remaining symbol periods of each subframe.

As indicated above, FIGS. 3A and 3B are provided as examples. Otherexamples are possible and may differ from what was described with regardto FIGS. 3A and 3B.

FIG. 4 shows an example subframe format 410 with a normal cyclic prefix.The available time frequency resources may be partitioned into resourceblocks. Each resource block may cover a set to of subcarriers (e.g., 12subcarriers) in one slot and may include a number of resource elements.Each resource element may cover one subcarrier in one symbol period(e.g., in time) and may be used to send one modulation symbol, which maybe a real or complex value. In some aspects, subframe format 410 may beused for transmission of SS blocks that carry the PSS, the SSS, thePBCH, and/or the like, as described herein.

An interlace structure may be used for each of the downlink and uplinkfor FDD in certain telecommunications systems (e.g., NR). For example, Qinterlaces with indices of 0 through Q−1 may be defined, where Q may beequal to 4, 6, 8, 10, or some other value. Each interlace may includesubframes that are spaced apart by Q frames. In particular, interlace qmay include subframes q, q+Q, q+2Q, etc., where q∈{0, . . . ,Q−1}.

A UE may be located within the coverage of multiple BSs. One of theseBSs may be selected to serve the UE. The serving BS may be selectedbased at least in part on various criteria such as received signalstrength, received signal quality, path loss, and/or the like. Receivedsignal quality may be quantified by a signal-to-noise-and-interferenceratio (SINR), or a reference signal received quality (RSRQ), or someother metric. The UE may operate in a dominant interference scenario inwhich the UE may observe high interference from one or more interferingBSs.

While aspects of the examples described herein may be associated with NRor 5G technologies, aspects of the present disclosure may be applicablewith other wireless communication systems. New radio (NR) may refer toradios configured to operate according to a new air interface (e.g.,other than Orthogonal Frequency Divisional Multiple Access (OFDMA)-basedair interfaces) or fixed transport layer (e.g., other than InternetProtocol (IP)). In aspects, NR may utilize OFDM with a CP (hereinreferred to as cyclic prefix OFDM or CP-OFDM) and/or SC-FDM on theuplink, may utilize CP-OFDM on the downlink and include support forhalf-duplex operation using time division duplexing (TDD). In aspects,NR may, for example, utilize OFDM with a CP (herein referred to asCP-OFDM) and/or discrete Fourier transform spread orthogonalfrequency-division multiplexing (DFT-s-OFDM) on the uplink, may utilizeCP-OFDM on the downlink and include support for half-duplex operationusing TDD. NR may include Enhanced Mobile Broadband (eMBB) servicetargeting wide bandwidth (e.g., 80 megahertz (MHz) and beyond),millimeter wave (mmW) targeting high carrier frequency (e.g., 60gigahertz (GHz)), massive MTC (mMTC) targeting non-backward compatibleMTC techniques, and/or mission critical targeting ultra reliable lowlatency communications (URLLC) service.

In some aspects, a single component carrier bandwidth of 100 MHZ may besupported. NR resource blocks may span 12 sub-carriers with asub-carrier bandwidth of 60 or 120 kilohertz (kHz) over a 0.1millisecond (ms) duration. Each radio frame may include 40 subframeswith a length of 10 ms. Consequently, each subframe may have a length of0.25 ms. Each subframe may indicate a link direction (e.g., DL or UL)for data transmission and the link direction for each subframe may bedynamically switched. Each subframe may include DL/UL data as well asDL/UL control data.

Beamforming may be supported and beam direction may be dynamicallyconfigured. MIMO transmissions with precoding may also be supported.MIMO configurations in the DL may support up to 8 transmit antennas withmulti-layer DL transmissions up to 8 streams and up to 2 streams per UE.Multi-layer transmissions with up to 2 streams per UE may be supported.Aggregation of multiple cells may be supported with up to 8 servingcells. Alternatively, NR may support a different air interface, otherthan an OFDM-based interface. NR networks may include entities suchcentral units or distributed units.

As indicated above, FIG. 4 is provided as an example. Other examples arepossible and may differ from what was described with regard to FIG. 4.

FIG. 5 illustrates an example logical architecture of a distributed RAN500, according to aspects of the present disclosure. A 5G access node506 may include an access node controller (ANC) 502. The ANC may be acentral unit (CU) of the distributed RAN 500. The backhaul interface tothe next generation core network (NG-CN) 504 may terminate at the ANC.The backhaul interface to neighboring next generation access nodes(NG-ANs) may terminate at the ANC. The ANC may include one or more TRPs508 (which may also be referred to as BSs, NR BSs, Node Bs, 5G NBs, APs,gNB, or some other term). As described above, a TRP may be usedinterchangeably with “cell.”

The TRPs 508 may be a distributed unit (DU). The TRPs may be connectedto one ANC (ANC 502) or more than one ANC (not illustrated). Forexample, for RAN sharing, radio as a service (RaaS), and servicespecific AND deployments, the TRP may be connected to more than one ANC.A TRP may include one or more antenna ports. The TRPs may be configuredto individually (e.g., dynamic selection) or jointly (e.g., jointtransmission) serve traffic to a UE.

The local architecture of RAN 500 may be used to illustrate fronthauldefinition. The architecture may be defined that support fronthaulingsolutions across different deployment types. For example, thearchitecture may be based at least in part on transmit networkcapabilities (e.g., bandwidth, latency, and/or jitter).

The architecture may share features and/or components with LTE.According to aspects, the next generation AN (NG-AN) 510 may supportdual connectivity with NR. The NG-AN may share a common fronthaul forLTE and NR.

The architecture may enable cooperation between and among TRPs 508. Forexample, cooperation may be preset within a TRP and/or across TRPs viathe ANC 502. According to aspects, no inter-TRP interface may beneeded/present.

According to aspects, a dynamic configuration of split logical functionsmay be present within the architecture of RAN 500. The packet dataconvergence protocol (PDCP), radio link control (RLC), media accesscontrol (MAC) protocol may be adaptably placed at the ANC or TRP.

According to various aspects, a BS may include a central unit (CU)(e.g., ANC 502) and/or one or more distributed units (e.g., one or moreTRPs 508).

As indicated above, FIG. 5 is provided merely as an example. Otherexamples are possible and may differ from what was described with regardto FIG. 5.

FIG. 6 illustrates an example physical architecture of a distributed RAN600, according to aspects of the present disclosure. A centralized corenetwork unit (C-CU) 602 may host core network functions. The C-CU may becentrally deployed. C-CU functionality may be offloaded (e.g., toadvanced wireless services (AWS)), in an effort to handle peak capacity.

A centralized RAN unit (C-RU) 604 may host one or more ANC functions.Optionally, the C-RU may host core network functions locally. The C-RUmay have distributed deployment. The C-RU may be closer to the networkedge.

A distributed unit (DU) 606 may host one or more TRPs. The DU may belocated at edges of the network with radio frequency (RF) functionality.

As indicated above, FIG. 6 is provided merely as an example. Otherexamples are possible and may differ from what was described with regardto FIG. 6.

FIGS. 7A and 7B are diagrams illustrating an example 700 of a networktopology for a network, in accordance with various aspects of thepresent disclosure. Self-backhauling or integrated access/backhaul (IAB)may be deployed to use a common set of resources for access traffic andbackhaul traffic. For example, a first wireless node (e.g., a BS 110, aUE 120, and/or the like) may communicate backhaul traffic via firstmmWave resources with a second wireless node, and may communicate accesstraffic via second mmWave resources with a third wireless node.

As shown in FIG. 7A, example 700 may include multiple wireless nodes 702(e.g., BSs) and multiple wireless nodes 704 (e.g., UEs). At least onewireless node (e.g., wireless node 702-1) may communicate with a corenetwork via a backhaul link 706, such as a fiber connection, a wirelessbackhaul connection, and/or the like. Wireless nodes 702 and 704 maycommunicate with each other using a set of links 708, such as a set ofmmWave links; a 3G, 4G, 5G, etc. air interface; and/or the like. In someaspects, a wireless node 702 may correspond to BS 110 or UE 120 shown inFIG. 1. Similarly, a wireless node 704 may correspond to BS 110 or a UE120 shown in FIG. 1.

As further shown in FIG. 7A, one or more wireless nodes 702 or 704 maycommunicate indirectly via one or more other wireless nodes 702 or 704.For example, data may be transferred from a core network to wirelessnode 704-6 via backhaul link 706, a link 708 between wireless node 702-1and wireless node 702-5, a link 708 between wireless node 702-5 andwireless node 702-4, a link 708 between wireless node 702-4 and wirelessnode 704-5, and a link 708 between wireless node 704-5 and wireless node704-6. In some aspects, multiple different paths may be used tocommunicate data between wireless nodes 702 or 704. For example,wireless node 702-5 may communicate with wireless node 702-4 via asingle link 708 between wireless node 702-5 and wireless node 702-4(e.g., a direct link) and/or via a first link 708 between wireless node702-5 and wireless node 702-3 and a second link between wireless node702-3 and wireless node 702-4 (e.g., an indirect link).

As shown in FIG. 7B, wireless nodes 702 and wireless nodes 704 can bearranged in a hierarchical topology to enable management of networkresources. Each link 708 may be associated with a master link end point(master LEP) and a slave link end point (slave LEP), which may define ahierarchy between wireless nodes 702 or 704. For example, wireless node702-6 may communicate with wireless node 702-7 via link 708-1. In thiscase, wireless node 702-6 is associated with a master link end point andwireless node 702-7 is associated with a slave link end point for link708-1, which may define wireless node 702-6 as hierarchically superiorto wireless node 702-7, and wireless node 702-7 as hierarchicallyinferior to wireless node 702-6 with regard to link 708-1. Moreover,wireless node 702-6 may be defined as upstream relative to wireless node702-7 (and wireless node 702-7 may be defined as downstream relative towireless node 702-6).

Similarly, wireless node 702-7 includes a master link end point for link708-2 and wireless node 702-8 includes a slave link end point forbackhaul link 708-2. In this case, wireless node 702-7 is hierarchicallysuperior and upstream to wireless node 702-8, and wireless node 702-8 ishierarchically inferior and downstream to wireless node 702-7 withregard to link 708-2. In some aspects, a wireless node 702 or 704 mayinclude a single antenna or antenna array for both the slave link endpoint and master link end point. In some aspects, a wireless node 702 or704 may include a first antenna or antenna array for the slave link endpoint and a second antenna or antenna array for the master link endpoint.

In some aspects, wireless node 702-6, or a central unit, may be referredto herein as an IAB-donor. The IAB-donor may be the RAN node thatprovides the UE with access to the core network and that provideswireless backhauling functionality to IAB nodes. Wireless nodes 702-7,702-8, and so on may be referred to as IAB nodes. An IAB node may beassociated with a mobile terminal (MT), which may act as a UE for theparent IAB node of the IAB node or for the IAB-donor. An IAB node mayalso be associated with a DU or gNB, which may function as a basestation (e.g., a gNB, a gNB-DU with a MAC scheduler, etc.) for childnodes of the IAB node.

As indicated above, FIGS. 7A and 7B are provided as examples. Otherexamples are possible and may differ from what was described withrespect to FIGS. 7A and 7B.

An upstream wireless node may determine a transmission power fortransmissions to each downstream wireless node. Similarly, the upstreamwireless node may determine a transmission power for transmission fromeach downstream wireless node (e.g., transmission to the upstreamwireless node, to subsequent downstream wireless nodes, and/or thelike). However, in some network topologies, a downstream wireless nodemay experience inter-link interference when receiving a plurality oftransmissions via a plurality of links, such as from a plurality ofupstream wireless nodes, from an upstream wireless node and from adownstream wireless node, from a plurality of downstream wireless nodes,and/or the like. Moreover, the upstream wireless node or the downstreamwireless node may be associated with a threshold maximum power, such asa threshold maximum transmit power, a threshold maximum receive power,and/or the like, and may receive an instruction that is to cause atransmission to exceed the threshold maximum power.

Some aspects, described herein, may enable power control for concurrentreception. For example, a control node may determine a plurality ofpowers for a plurality of transmissions to a target wireless node via aplurality of links and from a plurality of other wireless nodes. Theplurality of powers may include a plurality of transmit powers by theother plurality of wireless nodes, a plurality of receive powers (e.g.,a plurality of gain values) used by the target wireless node, and/or thelike. The plurality of powers may be selected to control inter-linkinterference and/or to satisfy a maximum power criterion. In this case,the control node may cause the plurality of other wireless nodes totransmit, via the plurality of links, the plurality of transmissionsusing the plurality of powers. In this way, the control node enablescommunications for a particular network topology, such as in aself-backhauling network, an IAB network, and/or the like.

FIGS. 8A and 8B are diagrams illustrating an example 800 of powercontrol for concurrent reception, in accordance with various aspects ofthe present disclosure. As shown in FIGS. 8A and 8B, example 800 mayinclude a first wireless node 805, which may be in communication with asecond wireless node 805 via a first link 810 and in communication witha third wireless node 805 via a second link 810, and a control node 815.

In some aspects, wireless nodes 805 may correspond to BS 110, UE 120,wireless node 702, wireless node 704, and/or the like. In some aspects,links 810 may correspond to links 708. In some aspects, control node 815may correspond to BS 110, UE 120, wireless node 702, wireless node 704,and/or the like. In some aspects, control node 815 may be one or more ofwireless nodes 805. For example, control node 815 may be first wirelessnode 805. In some aspects, control node 815 may be a group of wirelessnodes, such as one or more of wireless nodes 805, one or more otherwireless nodes, and/or the like. In some aspects, control node 815 maybe a device separate from wireless nodes 805, such as another node ofthe network, a central unit, an integrated access and backhaul(IAB)-donor, a scheduler node, and/or the like.

With regard to FIG. 8A, first wireless node 805 may be downstream ofboth second wireless node 805 and third wireless node 805. For example,first wireless node 805 may be a user equipment-function (UE-F), andsecond wireless node 805 and third wireless node 805 may be accessnode-functions (ANFs). In contrast, with regard to FIG. 8B, firstwireless node 805 may be downstream of second wireless node 805 andupstream of third wireless node 805. For example, second wireless node805 may be an ANF of first wireless node 805, which may be a UE-F ofsecond wireless node 805, and first wireless node 805 may be an ANF ofthird wireless node 805, which may be a UE-F of second wireless node805. In this case, first wireless node 805 may be a relay node. In someaspects, first wireless node 805 may support concurrent communicationwith second wireless node 805 and third wireless node 805 (e.g., usingFDM, space division multiplexing (SDM), multiple user MIMO (MU-MIMO),and/or the like).

In some aspects, a wireless node 805 may schedule communications on alink 810. For example, with regard to FIG. 8A, second wireless node 805may schedule communications on first link 810 and third wireless node805 may schedule communications on second link 810. In contrast, withregard to FIG. 8B, second wireless node 805 may schedule communicationson first link 810 and first wireless node 805 may schedulecommunications on second link 810. Although aspects, described herein,are described in terms of a first wireless node 805, a second wirelessnode 805, and a third wireless node 805, other quantities of wirelessnodes 805, arrangements of wireless nodes 805, and/or the like arepossible.

As shown in FIGS. 8A and 8B, and by reference number 820, control node815 may determine a plurality of powers for links 810. For example,control node 815 may determine a first power for first link 810 and asecond power for second link 810. In some aspects, the plurality ofpowers may be a plurality of transmit powers. For example, control node815 may determine a first power with which second wireless node 805 isto transmit to first wireless node 805 (e.g., a target wireless node)and a second power with which third wireless node 805 is to transmit tofirst wireless node 805. Additionally, or alternatively, the pluralityof powers may be a plurality of receive powers. For example, controlnode 815 may determine a receiver configuration (e.g., a gainconfiguration of first wireless node 805) associated with causing firstwireless node 805 to receive concurrent transmissions from secondwireless node 805 and third wireless node 805 at a selected plurality ofpowers. In some aspects, the plurality of powers may include one or moretransmit powers and one or more receive powers. For example, controlnode 815 may control transmission powers of a first plurality oftransmissions from first wireless node 805 and receive powers of asecond plurality of transmissions to first wireless node 805.

In some aspects, control node 815 may select the plurality of powers forlinks 810 to control inter-link interference. For example, control node815 may select the plurality of powers to ensure that a transmissionfrom second wireless node 805 does not interfere with anothertransmission from third wireless node 805. In some aspects, control node815 may select the plurality of powers for links 810 to satisfy amaximum power criterion. For example, when first wireless node 805 is touse a single antenna or antenna array associated with a thresholdmaximum power for concurrent reception of a plurality of transmissionsfrom second wireless node 805 and third wireless node 805, control node815 may select the plurality of powers to share portions of availablepower such that the threshold maximum power is not exceeded.

In some aspects, control node 815 may statically determine the pluralityof powers. For example, at a particular time, control node 815 may betriggered to determine the plurality of powers, such as at an initialconfiguration time, when a connection to second wireless device and/orthird wireless node 805 is established by first wireless node 805,and/or the like. In this case, control node 815 may determine theplurality of powers and configure the plurality of powers for subsequentuse. In some aspects, control node 815 may semi-statically determine theplurality of powers for a particular type of signal, for example, for apower-sensitive signal, such as a reference signal. For example, controlnode 815 may semi-statically determine the plurality of powers for aperiodic channel state information reference signal (CSI-RS), a radioresource management reference signal (RRM RS), and/or the like.

In some aspects, control node 815 may dynamically determine theplurality of powers. For example, control node 815 may, afterdetermining a first plurality of powers at a first time, determine asecond plurality of powers at a second time, such as based at least inpart on a change to a network configuration, a change to a networkcharacteristic (e.g., a signal to interference noise ratio or anothernetwork characteristic), and/or the like. Additionally, oralternatively, control node 815 may dynamically determine a subset ofthe plurality of powers. For example, control node 815 may staticallydetermine a first power (e.g., for first link 810), and may dynamicallydetermine and update a second power (e.g., for second link 810, anotherlink 810, and/or the like).

In some aspects, control node 815 may determine the plurality of powersbased at least in part on received signaling. For example, control node815 may receive signaling from a central unit (CU) of a network; awireless node 805 of the network; a group of wireless nodes, which mayinclude first wireless node, 805, second wireless node 805, or thirdwireless node 805; a control node; a scheduler node; and/or the like. Insome aspects, the received signaling may include information identifyingthe plurality of powers. For example, a central unit may providesignaling, which may specify the plurality of powers, to control node815 and control node 815 may cause wireless nodes 805 to transmit vialinks 810 using the plurality of powers.

Additionally, or alternatively, the received signaling may includeinformation relating to the plurality of powers. For example, ascheduler node, first wireless node 805, second wireless node 805, thirdwireless node 805, and/or the like may provide information identifying aschedule for transmissions, and control node 815 may determine theplurality of powers based at least in part on the schedule fortransmissions. In some aspects, the received signaling may be upperlayer signaling, such as signaling from a device associated withcontrolling and/or configuring the network.

In some aspects, control node 815 may determine the plurality of powersbased at least in part on stored configuration information. For example,control node 815 may store static configuration information associatedwith identifying powers for a plurality of transmissions, and maydetermine the plurality of powers based at least in part on the storedstatic configuration information.

In some aspects, control node 815 may provide signaling relating to theplurality of powers. For example, control node 815 may provide signalingto a scheduler node, a central unit, first wireless node 805, secondwireless node 805, third wireless node 805, an upper layer of thenetwork (e.g., a device associated with network control, scheduling,and/or configuration), and/or the like to identify a parameter relatingto the power, such as a parameter identifying the maximum powercriterion.

Additionally, or alternatively, control node 815 may provide signalingidentifying the plurality of powers. For example, control node 815 maytransmit an indicator of a power to a wireless node 805 or anothercontrol node 815 to enable the wireless node 805 or the other controlnode 815 to select another power to avoid inter-link interferencebetween transmissions. In some aspects, second wireless node 805 may bedesignated as a primary ANF, and may determine the plurality of powersand provide signaling to control node 815 relating to the plurality ofpowers based at least in part on being designated as a primary ANF.

In some aspects, control node 815 may receive and/or provide signalingidentifying a configuration parameter, a request for informationidentifying the configuration parameter, an approval of theconfiguration parameter, a disapproval of the configuration parameter, ameasurement, a capability indication, a limitation indication, aschedule, and/or the like. For example, control node 815 may request ameasurement of a network or an indication of an amount of data fortransmission from first wireless node 805, receive a response to therequest, determine a plurality of powers based at least in part on theresponse and a schedule for first wireless node 805, provide aconfiguration parameter identifying the plurality of powers, and receivean approval message approving of the configuration parameter.

In some aspects, control node 815 may determine the plurality of powersbased at least in part on a characteristic of the network, a device inthe network, traffic being communicated via the network, and/or thelike. For example, control node 815 may determine the plurality ofpowers based at least in part on a type of signal for transmission, atype of a wireless node (e.g., a type of first wireless node 805, secondwireless node 805, third wireless node 805, and/or the like), a state ofa wireless node (e.g., a state of first wireless node 805, secondwireless node 805, third wireless node 805, and/or the like), a timingof the signal, an angular direction of the signal, a configuration of achannel or signal for transmission, a priority of a channel or signalfor transmission, and/or the like.

In some aspects, control node 815 may determine a range of powers. Forexample, control node 815 may determine a maximum power for atransmission based at least in part on, for example, a type of signal ortype of channel for transmission, and may provide informationidentifying the maximum power to enable, for example, second wirelessnode 805 or third wireless node 805 to configure transmission to a lowerpower than the maximum power. Additionally, or alternatively, controlnode 815 may determine a minimum power for a transmission, and mayprovide information identifying the minimum power.

In some aspects, control node 815 may determine the plurality of powersbased at least in part on a prioritization. For example, control node815 may determine that a control signal is to be associated with ahigher prioritization than a payload signal; a scheduling request is tobe associated with a higher priority than a channel state informationsignal, a data signal, and a sounding reference signal; and/or the like.Additionally, or alternatively, control node 815 may determine aprioritization in assigning portions of available power based at leastin part on whether a wireless node 805 is included in a master cellgroup, a secondary cell group, an upstream direction, a downstreamdirection, and/or the like. In some aspects, control node 815 may scalea power to determine the plurality of powers. For example, based atleast in part on the maximum power and relative prioritizations relatingto first link 810 and second wireless node 805 and to second link 810and third wireless node 805, control node 815 may scale the maximumpower to divide the maximum power or to avoid inter-link interference.

In some aspects, the signaling relating to the power may be a particulartype of signal. For example, control node 815 may receive or provide adownlink control information (DCI) signal, an uplink control information(UCI) signal, a media access control (MAC) control element (CE) signal,a radio resource control (RRC) signal, a master information block (MIB)signal, a system information block (SIB) signal, a reference signal(e.g., a synchronization signal, a beam reference signal, a physicaldownlink shared channel (PDSCH) signal, an acknowledgement signal, anegative acknowledgement signal, a power indication signal, an upperlayer signaling signal, an F1-AP signal, a modulation and coding scheme(MCS) indication signal, and/or the like), and/or the like to identifythe power or information relating to the power. In this case, controlnode 815 may receive feedback information from first wireless node 805(e.g., identifying the MCS, a maximum receive power, and/or the like),and may determine a power based at least in part on the feedbackinformation. Similarly, control node 815 may receive feedbackinformation from first wireless node 805 identifying a request thattransmissions be associated with a greater power, and may determine theplurality of powers to increase subsequent transmission power and/orsubsequent receive power.

In some aspects, control node 815 may determine a power withoutreceiving signaling from first wireless node 805. For example, whensecond wireless node 805 and third wireless node 805 are schedulingnodes, second wireless node 805 and third wireless node 805 (e.g.,control node 815) may exchange one or more messages to determinetransmit powers to transmit to first wireless node 805 without causinginter-link interference or exceeding a maximum transmit power criterion.In some aspects, a first power may be determined based at least in parton a second power. For example, when first wireless node 805 is ascheduling node for second link 810 and a scheduled node for first link810, control node 815 may determine a power for the first link based atleast in part on a power for the second link.

In some aspects, control node 815 may determine a receiver configurationfor first wireless node 805 to enable first wireless node 805 to receivetransmissions via links 810 from second wireless node 805 and thirdwireless node 805. For example, control node 815 may determine areceiver power configuration, a low noise amplifier (LNA) gainconfiguration, a receiver filter configuration, an analog or digitalbeamforming configuration, and/or the like. In this case, control node815 may determine a plurality of powers (e.g., gain values) for an LNAof first wireless node 805, and may cause first wireless node 805 toreceive a plurality of transmissions using the plurality of powers forthe LNA. Similarly, control node 815 may cause first wireless node 805to adjust a beamforming configuration to alter a relative receive powerbetween links 810.

In some aspects, the plurality of powers are selected to suppress areceive power of a transmission via a link 810. For example, controlnode 815 may determine a power for a receiver configuration to cause areceive power of a transmission to be suppressed to avoid inter-linkinterference or to satisfy a maximum power criterion. In some aspects,control node 815 may adjust the receiver configuration based at least inpart on a prioritization relating to second wireless node 805, firstlink 810, third wireless node 805, second link 810, and/or the like.

In some aspects, control node 815 may determine another plurality ofpowers for first wireless node 805 to transmit to second wireless node805 and/or third wireless node 805. For example, control node 815 maydetermine a first transmit power for first link 810 to second wirelessnode 805, a second transmit power for second link 810 to third wirelessnode 805, a first receive power for first link 810 from second wirelessnode 805, and a second receive power for second link 810 from thirdwireless node 805. In this way, control node 815 (e.g., first wirelessnode 805) may enable first wireless node 805 to receive concurrenttransmissions and provide concurrent transmissions without inter-linkinterference or without exceeding a maximum transmit power criterion. Insome aspects, control node 815 may control a transmit power for anaccess link based at least in part on back haul communication with aparent node of control node 815.

As further shown in FIGS. 8A and 8B, and by reference number 825,control node 815 may cause transmission using the plurality of powersand, as shown by reference number 830, second wireless node 805 andthird wireless node 805 may transmit using the plurality of powers. Forexample, first wireless node 805 may receive information from secondwireless node 805 via first link 810 using a first power, and may,concurrently, receiving information from third wireless node 805 viasecond link 810 using a second power. In some aspects, control node 815may transmit signaling (e.g., identifying a power, a receiverconfiguration relating to a power, and/or the like) to a wireless node805 to cause transmission, such as to first wireless node 805, secondwireless node 805, third wireless node 805, and/or the like. In thisway, control node 815 enables first wireless node 805 to receive aplurality of concurrent transmissions without excessive inter-linkinterference, without exceeding a dynamic range or detection rangeassociated with a receive maximum power criterion, and/or the like.Moreover, control node 815 enables first wireless node 805 to transmit aplurality of concurrent transmissions without excessive inter-linkinterference, without exceeding a maximum transmit power criterion,and/or the like.

In some aspects, first wireless node 805 may receive payload data usingthe plurality of powers. Additionally, or alternatively, first wirelessnode 805 may receive signaling data using the plurality of powers. Insome aspects, first wireless node 805 may receive reference signals. Forexample, when receive a plurality of concurrent reference signals, suchas based at least in part on beam-sweeping, second wireless node 805and/or third wireless node 805 may dynamically adjust a power for eachreference signal based at least in part on the plurality of powers.

In some aspects, first wireless node 805 may transmit a relayed signal.For example, first wireless node 805 may be operating in a differentfrequency, RAT, cell, and/or the like from a direct link between secondwireless node 805 and third wireless node 805 to relay signals betweensecond wireless node 805 and third wireless node 805 (e.g., an indirectlink). In this case, first wireless node 805 may retransmit a relayedsignal using a power of the plurality of powers to enable redundantcommunications between second wireless node 805 and third wireless node805. In this case, control node 815 may indicate to first wireless node805, second wireless node 805, third wireless node 805, and/or the likea power for utilization in the direct link and/or the indirect link.

As indicated above, FIGS. 8A and 8B are provided as examples. Otherexamples are possible and may differ from what was described withrespect to FIGS. 8A and 8B.

FIG. 9 is a diagram illustrating an example process 900 performed, forexample, by a wireless node, in accordance with various aspects of thepresent disclosure. Example process 900 is an example where a controlnode (e.g., BS 110, UE 120, wireless node 702, wireless node 704,wireless node 805, control node 815, and/or the like) performs powercontrol for concurrent transmissions.

As shown in FIG. 9, in some aspects, process 900 may includedetermining, for a target wireless node in communication with aplurality of other wireless nodes via a plurality of links of a network,a plurality of powers for the plurality of links (block 910). Forexample, the control node (e.g., using controller/processor 240,controller/processor 280, and/or the like) may determine the pluralityof powers for the plurality of links, as described above. In someaspects, the plurality of powers are selected to control inter-linkinterference or to satisfy a maximum power criterion.

As shown in FIG. 9, in some aspects, process 900 may include causing atleast one of the target wireless node or the plurality of other wirelessnodes to use the plurality of powers for concurrent transmissions to thetarget wireless node using the plurality of links based at least in parton determining the plurality of powers (block 920). For example, thecontrol node (e.g., using controller/processor 240, transmit processor220, TX MIMO processor 230, MOD 232, antenna 234, controller/processor280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna252, and/or the like) may cause the plurality of other wireless nodes totransmit to the target wireless nodes using the plurality of powers, asdescribed above.

Process 900 may include additional aspects, such as any single aspect orany combination of aspects described below and/or in connection with oneor more other processes described elsewhere herein.

In some aspects, the target wireless node is a first wireless node andthe plurality of other wireless nodes include a second wireless nodecommunicating with the first wireless node via a first link of theplurality of links and a third wireless node communicating with thefirst wireless node via a second link of the plurality of links, and thesecond wireless node is scheduling communications on the first link andthe first wireless node is scheduling communications on the second link.In some aspects, the target wireless node is a first wireless node andthe plurality of other wireless nodes include a second wireless nodecommunicating with the first wireless node via a first link of theplurality of links and a third wireless node communicating with thefirst wireless node via a second link of the plurality of links, and thesecond wireless node is scheduling communications on the first link andthe third wireless node is scheduling communications on the second link.

In some aspects, the control node is the target wireless node, anothernode of the plurality of other wireless nodes, a central unit, anintegrated access and backhaul (IAB)-donor, a scheduler node of thenetwork, a group of nodes, and/or the like. In some aspects, theplurality of powers are determined based at least in part on storedconfiguration information. In some aspects, the plurality of powers aredetermined based at least in part on received signaling, and thereceived signaling is received from an upper layer of the network,another wireless node, a central unit, and/or the like. In some aspects,the control node may transmit signaling relating to a power, of theplurality of powers, to an upper layer of the network, another wirelessnode, a central unit, and/or the like.

In some aspects, signaling, provided to the control node or by thecontrol node, relating to a power, of the plurality of powers, includesinformation identifying a configuration parameter, a request forinformation identifying the configuration parameter, an approval of theconfiguration parameter, a disapproval of the configuration parameter, ameasurement, a capability indication, a limitation indication, aschedule, and/or the like. In some aspects, signaling, provided to thecontrol node or by the control node, relating to a power of theplurality of powers, is provided via a downlink control informationsignal, an uplink control information signal, a media access controlcontrol element signal, a radio resource control signal, a masterinformation block signal, a system information block signal, a referencesignal, a synchronization signal, a beam reference signal, a physicaldownlink shared channel signal, an acknowledgement signal, a negativeacknowledgement signal, a power indication signal, an upper layersignaling signal, an F1-AP signal a modulation and coding schemeindication signal, and/or the like.

In some aspects, a power, of the plurality of powers, is staticallydetermined. In some aspects, a power, of the plurality of powers, isdynamically determined. In some aspects, a first power, of the pluralityof powers, is statically determined, and a second power, of theplurality of powers, is dynamically determined. In some aspects, apower, of the plurality of powers, is determined based at least in parton a type of signal for transmission on a link of the plurality oflinks, a type of the target wireless node, a type of another wirelessnode, a state of the target wireless node, a state of the other wirelessnode, a timing of the signal for transmission on the link of theplurality of links, or an angular direction of the signal fortransmission on the link of the plurality of links a configuration of achannel or the signal for transmission on the link of the plurality oflinks, a capability of at least one wireless node, a priority for thechannel or the signal for transmission on the link of the plurality oflinks, and/or the like.

In some aspects, the control node may determine a maximum power for atransmission using a link of the plurality of links, and the maximumpower may be determined based at least in part on at least one of a typeof signal for transmission using the link or a type of channelassociated with the link. In some aspects, a power, of the plurality ofpowers, is determined without receiving information from the targetwireless node relating to the power. In some aspects, the targetwireless node is a scheduling node for a first link with a secondwireless node and is a scheduled node for a second link with a thirdwireless node, and a power for the first link is determined based atleast in part on information relating to a power for the second link.

In some aspects, a power, of the plurality of powers, is determinedbased at least in part on feedback from the target wireless node, andthe feedback includes information identifying at least one of a maximumreceive power of the target wireless node or a modulation and codingscheme associated with the target wireless node. In some aspects, areceiver configuration of the target wireless node is adjusted toreceive transmissions via the plurality of links from the plurality ofother wireless nodes based at least in part on causing the plurality ofother wireless nodes to use the plurality of powers, and the receiverconfiguration relates to a receiver power configuration, a low noiseamplifier gain configuration, a receiver filter configuration, an analogbeamforming configuration, a digital beamforming configuration, and/orthe like.

In some aspects, the receiver configuration is adjusted to suppress areceive power of a link, of the plurality of links, for a transmissionfrom another wireless node of the plurality of other wireless nodes. Insome aspects, the receiver configuration is adjusted based at least inpart on a prioritization relating to another wireless node of theplurality of other wireless nodes. In some aspects, the control node maydetermine another plurality of powers for another plurality of links,the other plurality of powers may be selected to control inter-linkinterference or to satisfy another maximum power criterion, and maycause the target wireless node to transmit, using the other plurality ofpowers for the other plurality of links, information, to the pluralityof other wireless nodes, concurrent with receiving information from theplurality of other wireless nodes. In some aspects, a power, of theplurality of powers, is a transmit power or a receive power.

Although FIG. 9 shows example blocks of process 900, in some aspects,process 900 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 9.Additionally, or alternatively, two or more of the blocks of process 900may be performed in parallel.

FIG. 10 is a diagram illustrating an example process 1000 performed, forexample, by a wireless node, in accordance with various aspects of thepresent disclosure. Example process 1000 is an example where a controlnode (e.g., BS 110, UE 120, wireless node 702, wireless node 704,wireless node 805, control node 815, and/or the like) performs powercontrol for concurrent transmissions.

As shown in FIG. 10, in some aspects, process 1000 may includedetermining, for a target wireless node in communication with at leastone other wireless node via at least one link of a network, a pluralityof powers for the at least one link (block 1010). For example, thecontrol node (e.g., using controller/processor 240, controller/processor280, and/or the like) may determine the plurality of powers for the atleast one link, as described above. In some aspects, the plurality ofpowers are selected to control inter-link interference or to satisfy amaximum power criterion.

As shown in FIG. 10, in some aspects, process 1000 may include causingat least one of the target wireless node or the at least one otherwireless node to use the plurality of powers for concurrenttransmissions using the at least one link based at least in part ondetermining the plurality of powers (block 1020). For example, thecontrol node (e.g., using controller/processor 240, transmit processor220, TX MIMO processor 230, MOD 232, antenna 234, controller/processor280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna252, and/or the like) may cause the target wireless node or at least oneof the at least one other wireless node to use the plurality of powersfor concurrent transmissions, such as a transmission to the targetwireless node, a transmission from the target wireless node, and/or thelike, as described above.

Process 1000 may include additional aspects, such as any single aspector any combination of aspects described below and/or in connection withone or more other processes described elsewhere herein.

In some aspects, a first power of the plurality of powers is a transmitpower and a second power of the plurality of powers is a receive power.In some aspects, the concurrent transmissions include at least onetransmission to the target wireless node from the at least one otherwireless node and at least one transmission from the target node to theat least one other wireless node.

Although FIG. 10 shows example blocks of process 1000, in some aspects,process 1000 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 10.Additionally, or alternatively, two or more of the blocks of process1000 may be performed in parallel.

FIG. 11 is a diagram illustrating an example process 1100 performed, forexample, by a wireless node, in accordance with various aspects of thepresent disclosure. Example process 1100 is an example where a wirelessnode (e.g., BS 110, UE 120, wireless node 702, wireless node 704,wireless node 805, control node 815, and/or the like) performs powercontrol for concurrent transmissions.

As shown in FIG. 11, in some aspects, process 1100 may includereceiving, when in communication with at least one other wireless nodevia at least one link of a network, information identifying a pluralityof powers for the at least one link (block 1110). For example, thewireless node (e.g., using antenna 234, DEMOD 232, MIMO detector 236,receive processor 238, controller/processor 240, antenna 252, DEMOD 254,MIMO detector 256, receive processor 258, controller/processor 280,and/or the like) may receive, when in communication with at least oneother wireless node via at least one link of a network, informationidentifying a plurality of powers for the at least one link, asdescribed above.

As shown in FIG. 11, in some aspects, process 1100 may include adjustinga reception configuration based at least in part on the informationidentifying the plurality of powers for the at least one link, whereinthe reception configuration is selected to control inter-linkinterference or to satisfy a maxim power criterion (block 1120). Forexample, the wireless node (e.g., using controller/processor 240,transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234,controller/processor 280, transmit processor 264, TX MIMO processor 266,MOD 254, antenna 252, and/or the like) may adjusting a receptionconfiguration based at least in part on the information identifying theplurality of powers for the at least one link, wherein the receptionconfiguration is selected to control inter-link interference or tosatisfy a maxim power criterion, as described above.

Process 1100 may include additional aspects, such as any single aspector any combination of aspects described below and/or in connection withone or more other processes described elsewhere herein.

In some aspects, the wireless node is configured to adjust at least oneof: a receiver power configuration, a low noise amplifier gainconfiguration, a receiver filter configuration, an analog beamformingconfiguration, or a digital beamforming configuration. In some aspects,the wireless node is configured to adjust the reception configuration tosuppress a receive power of a link, of the at least one link, for atransmission from the at least one other wireless node. In some aspects,the wireless node is configured to adjust the reception configurationbased at least in part on a prioritization relating to the at least oneother wireless node.

Although FIG. 11 shows example blocks of process 1100, in some aspects,process 1100 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 11.Additionally, or alternatively, two or more of the blocks of process1100 may be performed in parallel.

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseform disclosed. Modifications and variations are possible in light ofthe above disclosure or may be acquired from practice of the aspects.Methods, devices, non-transitory computer-readable media, apparatuses,and/or the like described herein may include any combination of one ormore of the aspects described herein.

As used herein, the term component is intended to be broadly construedas hardware, firmware, or a combination of hardware and software. Asused herein, a processor is implemented in hardware, firmware, or acombination of hardware and software.

Some aspects are described herein in connection with thresholds. As usedherein, satisfying a threshold may refer to a value being greater thanthe threshold, greater than or equal to the threshold, less than thethreshold, less than or equal to the threshold, equal to the threshold,not equal to the threshold, and/or the like.

It will be apparent that systems and/or methods, described herein, maybe implemented in different forms of hardware, firmware, or acombination of hardware and software. The actual specialized controlhardware or software code used to implement these systems and/or methodsis not limiting of the aspects. Thus, the operation and behavior of thesystems and/or methods were described herein without reference tospecific software code—it being understood that software and hardwarecan be designed to implement the systems and/or methods based, at leastin part, on the description herein.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of possible aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification. Although each dependentclaim listed below may directly depend on only one claim, the disclosureof possible aspects includes each dependent claim in combination withevery other claim in the claim set. A phrase referring to “at least oneof” a list of items refers to any combination of those items, includingsingle members. As an example, “at least one of: a, b, or c” is intendedto cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combinationwith multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c,a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering ofa, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems, and may be used interchangeably with “one or more.” Furthermore,as used herein, the terms “set” and “group” are intended to include oneor more items (e.g., related items, unrelated items, a combination ofrelated and unrelated items, and/or the like), and may be usedinterchangeably with “one or more.” Where only one item is intended, theterm “one” or similar language is used. Also, as used herein, the terms“has,” “have,” “having,” and/or the like are intended to be open-endedterms. Further, the phrase “based on” is intended to mean “based, atleast in part, on” unless explicitly stated otherwise.

What is claimed is:
 1. A method of wireless communication performed by acontrol node, comprising: determining, for a target wireless node incommunication with a plurality of other wireless nodes via a pluralityof links of a network, a plurality of powers for the plurality of links,wherein the plurality of powers are selected to control inter-linkinterference or to satisfy a maximum power criterion; and causing atleast one of the target wireless node or the plurality of other wirelessnodes to use the plurality of powers for concurrent transmissions to thetarget wireless node using the plurality of links based at least in parton determining the plurality of powers.